RE: My process wedges the machine.

> p.s. I've not heard the phrase 'wedged' applied to knackered
> programs before.  Cool, a new term to fob annoying clients off
> with ("Sorry Gale, the program is wedged until Thursday.").
>
> -d.w.
> :-)

...Knackered programs - aren't they tired? -smile-

Wedged is an old comp-sci term meaning hung, as in not responding to
input. You can wedge a single program or an entire system, as most
frequently demonstrated on your nearest Windoz box. -smile-

Anyway, the problem is almost certainly a programming error, not a bug in
the compiler or a library or anything like that.

Regards,
Richard

-- 
Richard Troy, Chief Scientist
Science Tools Corporation
[email protected], 510-567-9957, http://ScienceTools.com/

On Tue, 20 May 2003, Webster, Dave/RMD wrote:

> Date: Tue, 20 May 2003 14:51:26 +0200
> From: "Webster, Dave/RMD" <[email protected]>
> Reply-To: [email protected]
> To: [email protected]
> Subject: RE: My process wedges the machine.
>
> Hi Umesh,
>
> I've had similar problems when a process is waiting for children
> it swaned/forked off to finish, and those children hang.  Can you
> check for children of the main, 'wedged' process ('pstree' or similar)?
> Although I would have assumed it's state wouldn't be running if
> it was waiting for a child to die.  Also, are you sure it's the main
> processes that's 'wedged', and not a forked child of it?
>
> Cannot you kill the process with kill, kill -1, kill -14 or kill -9?
> I've not heard of too many non-zombie processess impervious to
> the kill -9 from root?  Maybe you don't have correct permissions?
>
> If you've tried gdb-ing to it, it's probably a C/C++ app, not Java,
> eh?  Maybe you're conditionally forking off a child process, or
> making a db connection isn't closing and your app. is patiently
> waiting.
>
> Hmmm, just some random guesses.  Sorry.
>
> p.s. I've not heard the phrase 'wedged' applied to knackered
> programs before.  Cool, a new term to fob annoying clients off
> with ("Sorry Gale, the program is wedged until Thursday.").
>
> -d.w.
> :-)
>
>
> 	-----Original Message-----
> 	From: Umesh Sisodia [mailto:[email protected]]
> 	Sent: Tue 20/05/2003 12:36
> 	To: [email protected]
> 	Cc:
> 	Subject: My process wedges the machine.
>
>
>
> 	Hi
>
> 	We have recently ported our tools to Red hat linux.
> 	In one of our application we are facing the problem that it wedges
> 	the machine. Log file shows that process has completed its job, but
> 	then machine almost hangs.
>
> 	-Process cannot be killed.
> 	-process is in run state (not waiting on I/O)
> 	-process run time keeps incrementing endlessly.
> 	-process memory size is low (41MB)
> 	-gdb cannot attach to the process.
>
> 	This does not happen in every run, but happens randomly once in a
> 	while. The machine is IBM with 1xCPU (Xeon 2.4MHz) 4GB RAM running
> 	the RH7.3 BigMem kernel.
> 	Regards,
> 	Umesh
>
>
> 	--
> 	******************************************************
> 	Umesh Sisodia (Sr. Member of technical staff)
> 	Cadence Design Systems, NEPZ, Noida, India
> 	Ph: (off) 91-120-2562842, ext. 4298
> 	(mobile) 98112 04168, (Res) 91-120-2578734
> 	email : [email protected]
> 	******************************************************
>
>
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